How to repair dead mobile charger circuit
The above image shows the inside of a typical mobile charger. These chargers can burn anytime and then they need to be replaced or repaired. This tutorial is about how to repair mobile charger circuit.
Fortunately the mobile charger repairing process isn’t much hard as there are few components to check if the charger is dead.
In this case the transistor was open. Note that the board had 120A transistor. And we can replace it by 13001 transistor easily. You can get two 13001 transistors from small (upto 11 watt) broken CFLs’ board.
Sometimes the electrolytic capacitors are also dead, you can find the bad capacitors by inspecting damages on those capacitors of the mobile charger circuit, usually the electrolytic capacitor’s vents are blown-up.
Bad resistors could be easily detected by inspecting the charred and blackened resistors or with a multimeter, you may need to replace them to repair mobile charger circuit.
Now just need to attach the output wire again and cover it up.